RU5876U1 - MULTI-CHANNEL ELECTRIC POWER CONSUMPTION METER - Google Patents

Abstract

A multi-channel power metering device containing m channels, where m = 1, 2, ..., each of which consists of n (n = 1, 2, ...) power sensors, the outputs of which are connected to the corresponding inputs of the addressing unit, and also a hub, characterized in that the shift bus, data and request address blocks of all channels are connected to the first input-output of the hub, which contains a controller, the first input-output of which is connected to the first input-output of the hub, the second input-output - to the input- the output of the non-volatile memory unit, and the third input-output - with the first input-output of the interface, the second input-output of which is the second input-output of the hub.

Description

Shogokanalnoe metering device for electricity consumption relates to electrical engineering and is designed to interrogate electricity meters in real time, store meter readings with reference to the temporary tariffs for the cost of electricity and the formation of a variety of report forms.

It is known a power metering device comprising current and voltage converters, a multiplier unit, a voltage-frequency converter, a drive, a shift register, a delay unit, a block for reading and transmitting information, a request and information unit, a communication channel and a private register / a.c . No. 1401384 at 01 R 11/00 10.11.85 /.

The disadvantage of this device is its complexity,

low performance due to the use of a magnetic counter and the lack of addressing systems, which narrows the area of its application.

Closest to declared A. is a multichannel device for measuring electric power, containing a block of power converters in frequency, a block of integrator counters, a co-oscillator, a control unit including a timer and delay lines, a telemechanics block, a block of memory registers and a register, / а.с . No. 1213418 9 01 1 21/133 07/03/84 /.

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Sequences of the first operations, complexity and narrow functionality.

The result achieved through the use of the inventive multichannel device is to increase the speed, reliability and expansion of functional capabilities by increasing the volume of non-volatile, emergency information retrieval and programming during commissioning and architectural changes; systems, the possibility of changing tariffs depending on the time of day, time adjustment.

The drawing shows a structural diagram of a multi-channel device.

The multichannel device for accounting for electricity consumption contains / channels / 1, 2 ... /, each of which consists of n 1, 2, .. electric sensors, addressing unit 2, which consists of N counters 3, shift register 4 and address selector 5 as well as a hub 6, consisting of a controller 7, a non-volatile memory unit 8 and an interface 9, a request bus 10, a data bus 11, a shift bus 12, and a permission bus 13.

The device operates as follows.

From the sensors 1, the pulses arrive at the counting inputs of the counters 3, which calculate the total number of pulses and give increments of the values of the consumed electricity in the form of a frequency-pulse code.

The controller 7 with a period not exceeding the overflow time of the counters 3, overwrites the information in the shift register 4 on the request bus 10 when the pulse goes from 1 to 0. On the data bus 11, the controller 7 synchronously with the signal Shift sends the address of the polled shift register 4. In this case signal

The request should be level O. All address selectors are 5 npHHHMajiT address to be transmitted. After the address is transmitted, the controller 7 sets level 1 on the request bus 10. In this case, the address selector 5, for which the set address matches the received one, allows / log 1 on bus 13 and log 1 on bus 10 / corresponding to / iy shift register to output data synchronously with the signal Shift, issued by the controller 7 via bus 12. Thus, all channels are periodically interrogated. In controller 7, the received increments are converted for each 1 1 meter directly into the readings of consumed electricity with recording of these readings in non-volatile (units / nt with breakdown by tariff time zones. the rate of information is recorded in the corresponding memory cell of block 8.

At the request of the dispatcher, the hub 6 provides the necessary information. Hub 6 allows you to interrogate up to 32 addressing units and is designed for installation in the entrance of an apartment building with no more than 128 counters.

The optical interface 9 is designed for emergency information retrieval and programming during commissioning and changing the architecture of sisters. Removal of foreign affairs and programming is carried out by a portable control unit.

The system and its software make it possible to increase the volume of non-volatile components in order to connect gas, hot and cold water, heat flow sensors to the system. This allows you to conduct comprehensive metering of energy consumption by subscribers.

Claims (1)

A multi-channel power metering device containing m channels, where m = 1, 2, ..., each of which consists of n (n = 1, 2, ...) power sensors, the outputs of which are connected to the corresponding inputs of the addressing unit, and also a hub, characterized in that the shift bus, data and request address blocks of all channels are connected to the first input-output of the hub, which contains a controller, the first input-output of which is connected to the first input-output of the hub, the second input-output - to the input- the output of the non-volatile memory unit, and the third input-output - with the first input-output of the interface, the second input-output of which is the second input-output of the hub.